Proteus

Description:
Proteus is a nice small game, that could well be described as a digital environmental experience. It was developed by Ed Key and David Kanaga and released in 2013. In the game, the player walks around on an island where everything, next to being very colourful, produces sounds, partially in response to the players presence. Next to that, calm dynamic music or environmental sounds play throughout the game. The result is a very lovely virtual walk, accompanied by the occasional chasing of a musical bunny. (See video.)
This sound design greatly enhances the experience of wonder and goes hand in hand with the visual style, since both have quite an 8-bit feel to them. The sound is a crucial part to Proteus and very well done.